Aging and Memory Loss

Forgetfulness is a common complaint among older adults. You start to talk about a movie you saw recently when you realize you can’t remember the title. You’re giving directions to your house when you suddenly blank on a familiar street name. You find yourself standing in the middle of the kitchen wondering what you went in there for. Memory lapses can be frustrating, but most of the time they aren’t cause for concern. Age-related memory changes are not the same thing as dementia.

As we grow older, we experience physiological changes that can cause glitches in brain functions we’ve always taken for granted. It takes longer to learn and recall information. We’re not as quick as we used to be. In fact, we often mistake this slowing of our mental processes for true memory loss. But in most cases, if we give ourselves time, the information will come to mind.

Memory loss is not an inevitable part of the aging process

The brain is capable of producing new brain cells at any age, so significant memory loss is not an inevitable result of aging. But just as it is with muscle strength, you have to use it or lose it. Your lifestyle, health habits, and daily activities have a huge impact on the health of your brain. Whatever your age, there are many ways you can improve your cognitive skills, prevent memory loss, and protect your grey matter.

Furthermore, many mental abilities are largely unaffected by normal aging, such as:

• Your ability to do the things you’ve always done and continue to do often
• The wisdom and knowledge you’ve acquired from life experience
• Your innate common sense
• Your ability to form reasonable arguments and judgments

Normal forgetfulness vs. dementia

For most people, occasional lapses in memory are a normal part of the aging process, not a warning sign of serious mental deterioration or the onset of dementia.

The following types of memory lapses are normal among older adults and generally are not considered warning signs of dementia:

• Forgetting where you left things you use regularly, such as glasses or keys.
• Forgetting names of acquaintances or blocking one memory with a similar one, such as calling a grandson by your son’s name.
• Occasionally forgetting an appointment.
• Having trouble remembering what you’ve just read, or the details of a conversation.
• Walking into a room and forgetting why you entered.
• Becoming easily distracted.
• Not quite being able to retrieve information you have “on the tip of your tongue.”

Does your memory loss affect your ability to function?

The primary difference between age-related memory loss and dementia is that the former isn’t disabling. The memory lapses have little impact on your daily performance and ability to do what you want to do.When memory loss becomes so pervasive and severe that it disrupts your work, hobbies, social activities, and family relationships, you may be experiencing the warning signs of Alzheimer’s disease, or another disorder that causes dementia, or a condition that mimics dementia.

Preventing memory loss and cognitive decline

The same practices that contribute to healthy aging and physical vitality also contribute to healthy memory.

• Exercise regularly. Regular exercise boosts brain growth factors and encourages the development of new brain cells. Exercise also reduces the risk for disorders that lead to memory loss, such as diabetes and cardiovascular disease. Exercise also makes a huge difference in managing stress and alleviating anxiety and depression—all of which leads to a healthier brain.
• Stay social. People who don’t have social contact with family and friends are at higher risk for memory problems than people who have strong social ties. Social interaction helps brain function in several ways: it often involves activities that challenge the mind, and it helps ward off stress and depression. So join a book club, reconnect with old friends, or visit the local senior center. Being with other people will help keep you sharp!
• Eat plenty of fruits, vegetables, and omega-3 fats. Antioxidants, found in abundance in fresh produce, literally keep your brain cells from “rusting.” And foods rich in omega-3 fats (such as salmon, tuna, trout, walnuts, and flaxseed) are particularly good for your brain and memory. Also avoid saturated and trans fats, which helps cholesterol levels and reduces your risk of stroke.
• Manage stress. Cortisol, the stress hormone, damages the brain over time and can lead to memory problems. But even before that happens, stress causes memory difficulties in the moment. When you’re stressed out, you’re more likely to suffer memory lapses and have trouble learning and concentrating.
• Get plenty of sleep. Sleep is necessary for memory consolidation, the process of forming and storing new memories so you can retrieve them later. Sleep deprivation also reduces the growth of new neurons in the hippocampus and causes problems with memory, concentration, and decision-making. It can even lead to depression—another memory killer.
• Don’t smoke. Smoking heightens the risk of vascular disorders that can cause stroke and constrict arteries that deliver oxygen to the brain.